some of what they re finding is a real surprise. abc s linzie janis has been talking to the animals. reporter: pets are always this easy to read. there is a lot of jumping, tails wagging. he ll stick out, like, his lower tooth like this, huh? reporter: researchers say there may be some, shall we say, misunderstandings between us. scientists in japan used high speed cameras to track doggy facial expressions in different situations and found similar patterns in how they behaved. they say raised eyebrows, perilously the left one means, i would like your attention. they notice the dog s left ear moves back when coming across a stranger, which expresses fear. kind of looks away. try to look at her. looking away. a sign that she is not very happy. reporter: in dog-speak that means i m being polite. avoiding confrontation. cats are more complicated. in britain animal scientists came up with a self-help video for cat owners looking to decode their mysterious ways. like this kitty r
this easy to read. there is a lot of jumping, tails wagging. he ll stick out, like, his lower tooth like this, huh? reporter: researchers say there may be some, shall we say, misunderstandings between us. scientists in japan used high speed cameras to track doggy facial expressions in different situations and found similar patterns in how they behaved. they say raised eyebrows, especially the left one, means i would like your attention. they notice the dog s left ear moves back when coming across a stranger, expressing fear. kind of looks away. try to look at her. looking away. a sign that she is not very happy. reporter: in dog-speak that means i m being polite. avoiding confrontation. cats are more complicated. in britain animal scientists came up with a self-help video for cat owners looking to decode their mysterious ways. like this kitty rolling over. think this means rub my belly, please? not quite. that would be a violation of trust.